PCB non-copper-plated hole detection device

Abstract

The utility model relates to the technical field of PCB (Printed Circuit Board) non-copper-plated hole detection equipment, and discloses a PCB non-copper-plated hole detection device, which comprises a bottom plate, a plurality of metal probes, a bracket at one end of the surface of the bottom plate, two main boards in sliding connection with the surface of the bracket, and a plurality of detection boards in sliding connection with the surfaces of the two main boards respectively, a plurality of threaded holes are formed in one sides of the two main plates, a plurality of moving blocks are slidably connected to the surfaces of the detection plates, a transmission mechanism is installed on one side of the support, a plurality of first rolling wheels are arranged on one side of the support, a moving mechanism is installed on one side of the support, and two positioning plates are installed on one side of the support; one end of each positioning plate is movably connected with a plurality of side plates, a limiting mechanism is installed on one side of the support, the device can adapt to detection of PCB non-copper-plated holes of various sizes, and meanwhile the positions of metal probes can be adjusted according to the positions of the PCB non-copper-plated holes.

Description

Technical Field

[0001] This utility model relates to the technical field of non-copper-plated hole detection equipment for PCB boards, specifically a non-copper-plated hole detection device for PCB boards. Background Technology

[0002] A PCB, or printed circuit board, is an important electronic component. It serves as the support for electronic components and the carrier for their electrical connections. Because it is manufactured using electronic printing technology, it is called a "printed" circuit board.

[0003] During PCB manufacturing, copper plating is required on the holes on the PCB surface. However, some holes that do not need copper plating need to be covered. But during copper plating, the covered holes may become exposed due to various reasons, causing copper plating to be completed on the holes that do not need to be plated. Forcing this will damage the PCB. Therefore, it is necessary to inspect the non-copper-plated holes on the PCB to prevent copper plating.

[0004] According to CN107643324B, "A Device for Detecting Non-Copper Plated Holes in PCB Boards," a pressure plate, a base plate, and a control device are included. The pressure plate includes positioning holes for positioning and a first metal probe protruding from the bottom of the pressure plate for contacting the non-copper plated holes in the PCB board. The base plate is located at the bottom of the pressure plate and includes a second metal probe protruding from the upper part of the base plate for contacting the non-copper plated holes in the PCB board, and four positioning posts for positioning the PCB board and the pressure plate, respectively located at the four corners of the base plate. Each non-copper plated hole to be measured is provided with a set of first metal probes and a set of second metal probes, with two probes in each set. This device uses two probes inserted into the non-copper plated holes in the PCB board and determines whether the hole is copper plated by checking the continuity of the circuit connecting the two probes in the same set. The operation is simple, effectively eliminating false judgments, and the device can simultaneously detect all non-copper plated holes on the PCB board, improving detection efficiency.

[0005] The above-mentioned device uses a metal probe to inspect all non-copper-plated holes on the PCB board, but it still has the following shortcomings:

[0006] 1. When using existing PCBs, different equipment is required, resulting in different PCB sizes and different positioning hole positions for PCBs of different sizes. The positioning posts of the above-mentioned device cannot be adjusted, which means that it can only be used for non-copper plating inspection of PCBs of one size specification.

[0007] 2. Due to differences in size, the non-copper-plated holes on the PCB board surface are inconsistent. When the above-mentioned device detects non-copper plating on the PCB board, the position of the metal probe is fixed, which makes it unsuitable for detecting non-copper plating on PCB boards of different sizes.

[0008] Therefore, we propose a PCB board non-copper plated hole detection device to solve the problems mentioned above. Utility Model Content

[0009] The purpose of this invention is to provide a device for detecting non-copper-plated holes on PCB boards, so as to solve the problems mentioned in the background art that it is not applicable to the detection of non-copper-plated holes on PCB boards of various sizes, and that the position of the metal probe cannot be adjusted according to the position of the non-copper-plated holes on the PCB board.

[0010] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0011] A PCB board non-copper plated hole detection device includes a base plate with multiple metal probes mounted on top of it. A bracket is fixedly connected to one end of the base plate. Two main boards are slidably connected to the bracket, driving the multiple metal probes to detect the PCB board. Multiple detection plates are slidably connected to the surfaces of the two main boards. Each of the two main boards has multiple threaded holes on one side for adjusting the position of the multiple detection plates, and the main boards and detection plates are connected by bolts. Multiple moving blocks are slidably connected to the surfaces of the multiple detection plates, and the moving blocks are connected to the detection plates by bolts. The surfaces of the multiple moving blocks are fixedly connected to one end of the multiple metal probes. A transmission mechanism for moving the two main boards relative to each other is installed on one side of the bracket. Multiple rollers are provided on one side of the bracket for placing the PCB board. A moving mechanism for moving the multiple rollers relative to each other is installed on one side of the bracket. Two positioning plates for positioning the PCB board are installed on one side of the bracket, with multiple side plates movably connected to one end of each positioning plate. A limiting mechanism for moving the two positioning plates relative to each other is installed on one side of the bracket.

[0012] The two motherboards each have two observation holes on their surfaces to facilitate observation of the PCB board.

[0013] Multiple springs are fixedly connected to both ends of the two positioning plates, and the other ends of the multiple springs are fixedly connected to the surfaces of multiple side plates, which drive the multiple side plates to flip at both ends of the two positioning plates to clamp and position the PCB board.

[0014] The two positioning plates and the surfaces of the multiple side plates are rotatably connected to multiple rollers for convenient positioning of the PCB board.

[0015] The transmission mechanism includes a motor fixedly connected to one end of the bracket. The output shaft of the motor is fixedly connected to a bidirectional screw that drives the two main plates to move relative to each other. The two ends of the surface of the bidirectional screw are threadedly connected to the surfaces of the two main plates respectively. The bidirectional screw is rotatably connected to the inner wall of the bracket.

[0016] The moving mechanism includes two moving rods that drive multiple rollers to move, and the inner wall of one end of the two moving rods is rotatably connected to the multiple rollers. The other end of the two moving rods is equipped with a moving component that drives the two moving rods to move.

[0017] The movable component includes a stabilizing plate fixedly connected to the lower surface of the bracket. One end of the stabilizing plate is fixedly connected to a second motor. The output shaft of the second motor is fixedly connected to a second bidirectional screw that drives two moving rods to move. The two ends of the surface of the second bidirectional screw are threadedly connected to the surfaces of the two moving rods. The second bidirectional screw is rotatably connected to the inner wall of the stabilizing plate. One end of each of the two moving rods is slidably connected to the surface of the stabilizing plate.

[0018] The limiting mechanism includes two connecting rods fixedly connected to one end of two positioning plates. One end of each connecting rod is fixedly connected to two racks that drive the two connecting rods to move relative to each other. The two racks are slidably connected to the inner wall of one side of the bracket. A transmission component that drives the two racks to move relative to each other is installed at the opposite ends of the racks.

[0019] The transmission assembly includes a gear that meshes with one end of the two racks opposite to the tooth grooves. A motor three that drives the gear to rotate is fixedly connected to the middle of one side of the bracket. The output shaft of the motor three is fixedly connected to the surface of the gear.

[0020] The bottom surface of the base plate is fixedly connected to multiple support legs that support the device.

[0021] Compared with the prior art, the beneficial effects achieved by this utility model are:

[0022] This invention places a PCB board on the surface of multiple rollers, which support the bottom of the PCB board. A motor drives a gear to rotate, causing two racks to move relative to each other. The racks then move two connecting rods, which in turn move two positioning plates, bringing the positioning plates into contact with both sides of the PCB board and fixing it in place. Springs move multiple side plates to contact both ends of the PCB board, while multiple rollers guide both ends of the PCB board, positioning it at the center of the two positioning plates. A motor drives a bidirectional screw to rotate, causing two moving rods to move relative to each other. These moving rods then move multiple rollers, disengaging them from under the PCB board. A motor then drives a bidirectional screw to rotate, causing two main boards to move relative to each other at one end of the support. These main boards then move a metal probe, bringing the probe into contact with both ends of the PCB board surface for inspection. This invention is suitable for inspecting non-copper-plated holes on PCB boards of various sizes.

[0023] By loosening the bolts between the motherboard and the detection board, the detection board slides on the motherboard surface, allowing the detection board to move the metal probe horizontally. When it moves to the adjusted position, the detection board is fixed by bolts passing through one end and threaded into multiple threaded holes. When vertical adjustment of the metal probe is required, the bolts between the moving block and the detection board are loosened, and the moving block moves synchronously with the metal probe. When the corresponding position is adjusted, the bolts are tightened to fix the moving block and the detection board. The position of the metal probe can be adjusted according to the location of the non-copper plated holes on the PCB board. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the back structure of this utility model;

[0026] Figure 3 This is a cross-sectional structural diagram of the present invention;

[0027] Figure 4 This is a partial structural schematic diagram of the present invention;

[0028] Figure 5 This is a schematic diagram of the limiting mechanism structure of this utility model;

[0029] Figure 6 This is a schematic diagram of the moving mechanism structure of this utility model.

[0030] The components are as follows: 1. Base plate; 2. Metal probe; 3. Main board; 4. Bracket; 5. Detection plate; 6. Threaded hole; 7. Moving block; 8. Roller 1; 9. Positioning plate; 10. Side plate; 11. Observation hole; 12. Spring; 13. Roller 2; 14. Motor 1; 15. Double-direction screw 1; 16. Moving rod; 17. Stabilizing plate; 18. Motor 2; 19. Double-direction screw 2; 20. Motor 3; 21. Gear; 22. Rack; 23. Connecting rod; 24. Support leg. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This utility model provides a technical solution:

[0033] like Figure 1 and Figure 4 As shown, a PCB board non-copper plated hole detection device includes a base plate 1, with multiple metal probes 2 disposed on the top of the base plate 1. A bracket 4 is fixedly connected to one end of the surface of the base plate 1. Two main boards 3 are slidably connected to the surface of the bracket 4, driving the multiple metal probes 2 to detect the PCB board. Multiple detection plates 5 are slidably connected to the surface of each of the two main boards 3. Multiple threaded holes 6 are opened on one side of each of the two main boards 3 to facilitate the adjustment of the position of the multiple detection plates 5. The main boards 3 and the detection plates 5 are connected by bolts. Multiple moving blocks 7 are slidably connected to the surface of each of the multiple detection plates 5. 7 is connected to the detection plate 5 by bolts. The surfaces of multiple moving blocks 7 are fixedly connected to one end of multiple metal probes 2. A transmission mechanism that drives the two main boards 3 to move relative to each other is installed on one side of the bracket 4. Multiple rollers 8 are provided on one side of the bracket 4 to facilitate the placement of the PCB board. A moving mechanism that drives the multiple rollers 8 to move relative to each other is installed on one side of the bracket 4. Two positioning plates 9 are installed on one side of the bracket 4 to position the PCB board. Multiple side plates 10 are movably connected to one end of each of the two positioning plates 9. A limiting mechanism that drives the two positioning plates 9 to move relative to each other is installed on one side of the bracket 4.

[0034] like Figure 1 and Figure 4 As shown, the PCB board is placed on the surface of multiple rollers 8, which support the bottom of the PCB board. Then, the limiting mechanism is activated, causing the two positioning plates 9 to move relative to each other. The two positioning plates 9 then move the multiple side plates 10 to contact both sides of the PCB board, clamping and fixing the PCB board with the two positioning plates 9. The multiple side plates 10 stabilize both ends of the PCB board. The moving mechanism is then activated, causing the multiple rollers 8 to disengage from under the PCB board. By loosening the bolts between the main board 3 and the detection board 5, the detection board 5 slides on the surface of the main board 3, causing the detection board 5 to move the metal probe 2 laterally. When it moves to the adjusted position, the bolts... The metal probe 2 is fixed by threading through one end of the detection plate 5 and then threaded into multiple threaded holes 6. When vertical adjustment of the metal probe 2 is required, the bolts between the moving block 7 and the detection plate 5 are loosened, and the moving block 7 is slid to drive the metal probe 2 to move synchronously. When adjusted to the corresponding position, the bolts are tightened to fix the moving block 7 and the detection plate 5. Then, the transmission mechanism is started, which drives the two main boards 3 to move towards both ends of the PCB board surface, so that the metal probe 2 contacts both ends of the PCB board surface for detection. It can adapt to the detection of non-copper-plated holes of PCB boards of various sizes, and can also adjust the position of the metal probe 2 according to the position of the non-copper-plated holes of the PCB board.

[0035] The technology for detecting non-copper-plated holes on PCB boards using metal probe 2 is existing. For reference, please refer to the non-copper-plated hole detection device for PCB boards disclosed in publication number CN107643324B. It will not be described in detail here.

[0036] Furthermore, such as Figure 3 and Figure 5 As shown, multiple springs 12 are fixedly connected to both ends of the two positioning plates 9, and the other ends of the multiple springs 12 are fixedly connected to the surfaces of multiple side plates 10, which drive the multiple side plates 10 to flip at both ends of the two positioning plates 9 to clamp and position the PCB board.

[0037] The surfaces of the two positioning plates 9 and the multiple side plates 10 are rotatably connected to multiple rollers 13 for convenient positioning of the PCB board.

[0038] Spring 12 drives multiple side plates 10 to contact both ends of the PCB board, while multiple rollers 13 guide both ends of the PCB board, so that the PCB board is located in the center of the two positioning plates 9, which facilitates multiple tests on the same model of PCB board.

[0039] Furthermore, such as Figure 1 , Figure 2 and Figure 3 As shown, the transmission mechanism includes a motor 14 fixedly connected to one end of the bracket 4. The output shaft of the motor 14 is fixedly connected to a bidirectional screw 15 that drives the two main plates 3 to move relative to each other. The two ends of the surface of the bidirectional screw 15 are respectively threaded to the surfaces of the two main plates 3. The bidirectional screw 15 is rotatably connected to the inner wall of the bracket 4.

[0040] Motor 14 drives bidirectional screw 15 to rotate, causing the bidirectional screw 15 to drive the two main plates 3 to move relative to each other at one end of the bracket 4, which in turn causes the two main plates 3 to move the metal probe 2.

[0041] Furthermore, such as Figure 1 , Figure 3 and Figure 6 As shown, the moving mechanism includes two moving rods 16 that drive multiple rollers 8 to move, and the inner wall of one end of the two moving rods 16 is rotatably connected to the multiple rollers 8. The other end of the two moving rods 16 is equipped with a moving component that drives the two moving rods 16 to move.

[0042] The moving component includes a stabilizing plate 17 fixedly connected to the lower surface of the bracket 4. A motor 18 is fixedly connected to one end of the stabilizing plate 17. The output shaft of the motor 18 is fixedly connected to a bidirectional screw 19 that drives two moving rods 16 to move. The two ends of the surface of the bidirectional screw 19 are threadedly connected to the surfaces of the two moving rods 16. The bidirectional screw 19 is rotatably connected to the inner wall of the stabilizing plate 17. One end of each of the two moving rods 16 is slidably connected to the surface of the stabilizing plate 17.

[0043] Motor 2 18 drives bidirectional screw 2 19 to rotate, which in turn drives two moving rods 16 to move relative to each other. The two moving rods 16 then drive multiple rollers 1 8 to move.

[0044] Furthermore, such as Figure 1 , Figure 3 and Figure 5 As shown, the limiting mechanism includes two connecting rods 23 fixedly connected to one end of two positioning plates 9. One end of each connecting rod 23 is fixedly connected to two racks 22 that drive the two connecting rods 23 to move relative to each other. The two racks 22 are slidably connected to the inner wall of one side of the bracket 4. A transmission component that drives the two racks 22 to move relative to each other is installed at the opposite ends of the tooth grooves of the two racks 22.

[0045] The transmission assembly includes a gear 21 that meshes with one end of the two racks 22 opposite to the tooth grooves. A motor 20 that drives the gear 21 to rotate is fixedly connected to the middle of one side of the bracket 4. The output shaft of the motor 20 is fixedly connected to the surface of the gear 21.

[0046] Motor 20 drives gear 21 to rotate, which in turn drives two racks 22 to move relative to each other. The two racks 22 then drive two connecting rods 23 to move, which in turn drive two positioning plates 9 to move, so that the two positioning plates 9 contact both sides of the PCB board and fix the PCB board.

[0047] Furthermore, such as Figures 1-4 As shown, multiple support legs 24 are fixedly connected to the bottom surface of the base plate 1 to support the device, which facilitates the support of the device.

[0048] Two observation holes 11 are provided on the surface of the two motherboards 3 to facilitate observation of the PCB board, allowing for constant monitoring of the PCB board.

[0049] The working principle of this PCB board non-copper plated hole detection device is as follows:

[0050] The PCB board is placed on the surface of multiple rollers 8, which support the bottom of the PCB board. Motor 20 drives gear 21 to rotate, causing gear 21 to move two racks 22 relative to each other. The two racks 22 move two connecting rods 23, which in turn move two positioning plates 9, bringing them into contact with both sides of the PCB board and fixing it in place. Spring 12 drives multiple side plates 10 to contact both ends of the PCB board, while multiple rollers 13 guide both ends of the PCB board, ensuring the PCB board is positioned between the two positioning plates 9. At the center position, motor 18 drives bidirectional screw 19 to rotate, causing bidirectional screw 19 to drive two moving rods 16 to move relative to each other. The two moving rods 16 drive multiple rollers 8 to move, causing multiple rollers 8 to move away from under the PCB board. Motor 14 drives bidirectional screw 15 to rotate, causing bidirectional screw 15 to drive two main boards 3 to move relative to each other at one end of the bracket 4. The two main boards 3 then drive the metal probe 2 to move, causing the metal probe 2 to contact both ends of the PCB board surface for detection. This can adapt to the detection of non-copper plated holes on PCB boards of various sizes.

[0051] By loosening the bolts between the main board 3 and the detection board 5, the detection board 5 slides on the surface of the main board 3, allowing the detection board 5 to move the metal probe 2 horizontally. When it moves to the adjusted position, the detection board 5 is fixed by bolts passing through one end and threaded into multiple threaded holes 6. When the metal probe 2 needs to be adjusted vertically, the bolts between the moving block 7 and the detection board 5 are loosened, and the moving block 7 moves the metal probe 2 synchronously. When it is adjusted to the corresponding position, the bolts are tightened to fix the moving block 7 and the detection board 5. The position of the metal probe 2 can be adjusted according to the position of the non-copper plated holes on the PCB board.

[0052] Although specific embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these specific embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for detecting non-copper-plated holes on a PCB board, comprising a base plate (1), wherein a plurality of metal probes (2) are disposed above the base plate (1), characterized in that, A bracket (4) is fixedly connected to one end of the surface of the base plate (1). Two main boards (3) are slidably connected to the surface of the bracket (4) to drive multiple metal probes (2) to detect the PCB board. Multiple detection boards (5) are slidably connected to the surfaces of the two main boards (3). Multiple threaded holes (6) are opened on one side of each of the two main boards (3) to facilitate the adjustment of the position of the multiple detection boards (5). The main boards (3) and the detection boards (5) are connected by bolts. Multiple moving blocks (7) are slidably connected to the surfaces of the multiple detection boards (5). The moving blocks (7) are connected to the detection boards (5) by bolts. The surface of the moving block (7) is fixedly connected to one end of multiple metal probes (2). A transmission mechanism that drives the two motherboards (3) to move relative to each other is installed on one side of the bracket (4). Multiple rollers (8) that facilitate the placement of the PCB board are provided on one side of the bracket (4). A moving mechanism that drives the multiple rollers (8) to move relative to each other is installed on one side of the bracket (4). Two positioning plates (9) that position the PCB board are installed on one side of the bracket (4). Multiple side plates (10) are movably connected to one end of each of the two positioning plates (9). A limiting mechanism that drives the two positioning plates (9) to move relative to each other is installed on one side of the bracket (4).

2. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: The two motherboards (3) are respectively provided with two observation holes (11) on their surfaces to facilitate observation of the PCB board.

3. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: Multiple springs (12) are fixedly connected to both ends of the two positioning plates (9), and the other end of the multiple springs (12) is fixedly connected to the surface of multiple side plates (10), which drives the multiple side plates (10) to flip at both ends of the two positioning plates (9) to clamp and position the PCB board.

4. A PCB board non-copper plated hole detection device according to claim 1 or 3, characterized in that: The two positioning plates (9) and the multiple side plates (10) are rotatably connected to multiple rollers (13) for facilitating the positioning of the PCB board.

5. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: The transmission mechanism includes a motor (14) fixedly connected to one end of the bracket (4). The output shaft of the motor (14) is fixedly connected to a bidirectional screw (15) that drives the two main plates (3) to move relative to each other. The two ends of the surface of the bidirectional screw (15) are threadedly connected to the surfaces of the two main plates (3) respectively. The bidirectional screw (15) is rotatably connected to the inner wall of the bracket (4).

6. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: The moving mechanism includes two moving rods (16) that drive multiple rollers (8) to move, and the inner wall of one end of the two moving rods (16) is rotatably connected to the multiple rollers (8), and the other end of the two moving rods (16) is equipped with a moving component that drives the two moving rods (16) to move.

7. The PCB board non-copper plated hole detection device according to claim 6, characterized in that: The movable component includes a stabilizing plate (17) fixedly connected to the lower surface of the bracket (4). One end of the stabilizing plate (17) is fixedly connected to a motor (18). The output shaft of the motor (18) is fixedly connected to a bidirectional screw (19) that drives two moving rods (16) to move. The two ends of the surface of the bidirectional screw (19) are threadedly connected to the surfaces of the two moving rods (16). The bidirectional screw (19) is rotatably connected to the inner wall of the stabilizing plate (17). One end of each of the two moving rods (16) is slidably connected to the surface of the stabilizing plate (17).

8. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: The limiting mechanism includes two connecting rods (23) fixedly connected to one end of two positioning plates (9). One end of each connecting rod (23) is fixedly connected to two racks (22) that drive the two connecting rods (23) to move relative to each other. The two racks (22) are slidably connected to the inner wall of one side of the bracket (4). The ends of the racks (22) with opposite tooth grooves are equipped with a transmission component that drives the two racks (22) to move relative to each other.

9. The PCB board non-copper plated hole detection device according to claim 8, characterized in that: The transmission assembly includes a gear (21) that meshes with one end of the two racks (22) opposite to the tooth grooves. A motor (20) that drives the gear (21) to rotate is fixedly connected to the middle of one side of the bracket (4). The output shaft of the motor (20) is fixedly connected to the surface of the gear (21).

10. The PCB board non-copper plated hole detection device according to claim 1, characterized in that: The bottom surface of the base plate (1) is fixedly connected to multiple support legs (24) that support the device.

Images